English verb conjugation
CAN COMPRESS

Regular verb: compress - compressed - compressed

Affirmation

Simple form	V-ing form
I can compress you can compress he can compress we can compress you can compress they can compress	I can be compressing you can be compressing he can be compressing we can be compressing you can be compressing they can be compressing
Perfect	V-ing perfect
I can have compressed you can have compressed he can have compressed we can have compressed you can have compressed they can have compressed	I can have been compressing you can have been compressing he can have been compressing we can have been compressing you can have been compressing they can have been compressing

Negation

Simple form	V-ing form
I cannot compress you cannot compress he cannot compress we cannot compress you cannot compress they cannot compress	I cannot be compressing you cannot be compressing he cannot be compressing we cannot be compressing you cannot be compressing they cannot be compressing
Perfect	V-ing perfect
I cannot have compressed you cannot have compressed he cannot have compressed we cannot have compressed you cannot have compressed they cannot have compressed	I cannot have been compressing you cannot have been compressing he cannot have been compressing we cannot have been compressing you cannot have been compressing they cannot have been compressing

Interrogative form

Simple form	V-ing form
can I compress? can you compress? can he compress? can we compress? can you compress? can they compress?	can I be compressing? can you be compressing? can he be compressing? can we be compressing? can you be compressing? can they be compressing?
Perfect	V-ing perfect
can I have compressed? can you have compressed? can he have compressed? can we have compressed? can you have compressed? can they have compressed?	can I have been compressing? can you have been compressing? can he have been compressing? can we have been compressing? can you have been compressing? can they have been compressing?

Interro-negative form

Simple form	V-ing form
can I not compress? can you not compress? can he not compress? can we not compress? can you not compress? can they not compress?	can I not be compressing? can you not be compressing? can he not be compressing? can we not be compressing? can you not be compressing? can they not be compressing?
Perfect	V-ing perfect
can I not have compressed? can you not have compressed? can he not have compressed? can we not have compressed? can you not have compressed? can they not have compressed?	can I not have been compressing? can you not have been compressing? can he not have been compressing? can we not have been compressing? can you not have been compressing? can they not have been compressing?